Paddle ore-washing machine



Dec. 23, 1930. cs. E. KRIDER PADDLE ORE WASHING MACHINE Filed April 19,1950 2 Sheets$heet l ,0 George E Kr/Jer By Allorney Dec. 23,1930. G, EKRmER 1,786,399

PADDLE ORE WASE'TNG MACHINE Filed April 19, 1930 2 Sheets-Sheet 2Inventor George A llomey Patented Dec. 23, 1930 V UNITED STATES PATENToFFwu- GEORGE E. KRIDEB, OF DUNCANSVILLE, PENNSYLVANIA, ASSIGNOR TOMCLANAHA'N- STONE MACHINE COMPANY, OF HOLLIDAYSLBURG, PENNSYLVANIA, ACORPORATION OF PENNSYLVANIA PADDLE ORE-WASHING iv ncnmn Applicationfiled April 19,

This invention relates to improved paddle constructions for use andassociation with washing machinery for ore and stone washing purposes.

reference to an improved paddle for use and association with a multiplesteel log washer type of machine which, as is well known in theindustry, embodies interconnected rotary shafts provided withlongitudinally spaced radial paddles such as are employed for thepurpose of removing clay from hematite, manganese, ores, limestones, vphosphates, rock, gravel, sand and other materials where such impuritiesare present.

In these types of washing machines, there are two or more inter-gearedrotary shafts provided with a multiplicity of radial paddles. Eachpaddle is of a one piece construction and removably bolted to the shaft.

7 As a general rule the shaft is made up of a plurality of angle irons.In the event of injury or undue wear and tear on the paddle, it isnecessary to remove the entire paddle This is an expensive arrangement.

The purpose of the present invention is to provide a two-part paddleconstruction including a body portion and a renewable tip or bladeportion so that when the blade portion becomes worn it may be replacedinan inexpensive and expeditious manner.

The purpose of the present invention is to provide a renewable paddletip or blade of an inexpensive and practical form, wheremarketed devicesof tion.

In the drawings: V I Figure 1 represents a fragmentary portion of anangle iron shaft provided with one of the improved paddle constructionsas made in accordance with the present invention.

Figure 2 is a sectional view through the paddle showing a permanentretaining finger or retainer. 1

Figure 3 is an end or edge elevation of the structure seen in Figure 2.

Figured is a view similar to Figure 2 showthis general classifica- Morespecifically stated, the invention has 1930. "Serial No. 445,717.

ing a slightly different form of retaining key.

Figure 5 is an end view of the structure seen in Figure 4:. i

In Figure 6 is a top plan view thereof. Attention is first invited toFigure 1 wherein the numeral 7 designates generally one of the rotatablepaddle carrying shafts. This is here shown as embodying a'series of fourangle irons 8 assembled in the manner here shown to accommodate theindividual paddles generally designated by the numeral 9. These paddlesin accordance with the general arrangement in the trade are obliquelyarranged.

Ordinarily however, piece form and when it is injured, it is neces-'sary to replace the entire paddle. Hence the 1 desire for atwo partpaddle wherein the tip maybe replaced in a more economical manner. w I

Therpaddle herein shown comprises a substantially rectangular attachingshank .10 which isfitted between the complemental angle irons and boltsin place by the bolt 11; The protruding head portion 12 is fashioned toprovidea keeper'and includes a wedgeshaped'keyway. The renewable bladeisindicated by-the numeral 13 and this includes a tapered connectingportion 14 forming the key and fitting slidably in the keyway. .This

blade occupies the customary angular position withrespect to the shaft 7In accordancewith .the present invention,

.. the narrow end of the key 14: is provided with by to improve uponprior patented and however, the blade is especially worn andneedsireplacement, the bent end of the retain- V each paddle is of oneing finger is bent to thedotted line position seen in Figure 2,whereupon the blade is simply slipped out of the keyway and a new bladeput inlposition. V Y i In this arrangement, the shank and keeper isremovably bolted to. the shaft and is itself removable; "The blade'13'IlS individually removable and therefore renewable. 'Consequently,therefore,this form'of blade isof a simplified, compact, convenient andeconomical type.

In Figures 4 to 6 inclusive, the same general principle of constructionis embodied except that the retainer is in the nature of a detach ablebar 16 seated in the groove in the bottom of the key 14. The bar is ofsuch length as to permit one end 17 to be bent down to retainingposition and the opposite end 18 to be bent up as shown in Figure 4.Thus, by bending the end 17 up the bar and the blade may be removed as aunit. In this arrangement the bar can be re-used, thus making this formof the invention even more economical.

The gist of the invention, it will be understood, is in the combinationof a rotary paddle carrying shaft constructed preferably of angle ironand including a two-part blade having a shank portion removably boltedin place and provided with a keeper head of proper angular relationship,together with a readily removable and renewable blade and dependableretaining device therefor.

It is thought that persons skilled in the art to which the inventionrelates will be able to obtain a clear understanding of the inventionafter considering the description in connection with the drawings.Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size, and rearrangement of details coming Withinthe field of invention claimed may be resorted to in actual practice ifdesired.

I claim:

1. In a structure of the class described, in combination, a rotary shaftembodying a pair of spaced parallel angle irons, a paddle, said paddleincluding a shank removably bolted between said irons, said shank havinga keeper embodying a head provided with a keyway, and a renewable bladehaving a key removably fitted in said keyway, together with a retainingtongue formed integrally with said key and bendable against said headfor maintaining said blade in position.

2. In a structure of the class described, in combination, a rotary shaftembodying a pair of spaced parallel angle irons, a paddle, said paddleincluding a shank removably bolted between said irons, said shank havinga keeper embodying a head provided with a keyway, and a renewable bladehaving a key removably fitted in said keyway, and a separate bar elementco-operable with said key and having one end bent down to retainingposition against said head and having the opposite end. bent up againstthe body portion of the blade.

3. As a new product of manufacture, a twopart paddle for use andassociation with a machine of the class described comprising a removableshank having an angularly disposed head provided. with a wedge-shapedkeyway and a blade having a wedge-shaped key removably arranged .in saidkeyway, to-

gether with a bendable retaining element carried by said blade andco-operable with said head.

In testimony whereof I affix my signature.

GEORGE E. KRIDER.

